4 Operations
4 - 8
S8BA-series Uninterruptible Power Supply (UPS) User’s Manual (U726)
z
For shutdown by a BS signal
*1. For details, refer to
Explains the operation when shifting to backup operation due to power failure or input voltage drop.
Input and output voltage time chart when shifting to backup opera-
tion
ON
ON
OFF
OFF
OFF
OFF
High
Low
Empty
OFF
ON
ON
ON
Durling power failure
Input power supply
Output from UPS
UPS
operating
mode
BU signal (OUT)
*1
BL signal (OUT)
*1
BS signal (IN)
*1
Normal operation
Backup operation
Battery restorage
Output voltage
Input voltage
power failure or input voltage drop
DC voltage
28V
21V
24 VDC
22 VDC
18 VDC
Summary of Contents for S8BA-24D24D480SBF
Page 5: ...Manual Structure 4 S8BA Series Uninterruptible Power Supply UPS User s Manual U726 ...
Page 21: ...Revision History 20 S8BA series Uninterruptible Power Supply UPS User s Manual U726 ...
Page 27: ...1 Overview of the product 1 6 S8BA series Uninterruptible Power Supply UPS User s Manual U726 ...
Page 55: ...4 Operations 4 10 S8BA series Uninterruptible Power Supply UPS User s Manual U726 ...